In a large saucepan, heat the olive oil over medium heat and then add the onions. Cook until tender, about 7 minutes. Add the garlic and cook another minute or two until fragrant. Add the Paolos Gourmet BASILICO tomatoes, 3 tablespoons of basil, salt, pepper, and pepper flakes and cook for 15 minutes. Add the cherry tomatoes and cook another 15 minutes, stirring often. While the sauce is cooking, bring a large pot of lightly salted water to a boil. Cook the pasta according to package instructions until it is “al dente”. Stir the remaining basil into the sauce, then taste and adjust seasonings as needed. Drain the pasta and return to the pot. Add a ladle or two of sauce to the pot and toss until the pasta is coated. Served in individual bowls topped with a spoonful of additional sauce. Offer grated Pecorino Romano or Parmesan cheese at the table if desired